changelog: add bdev QoS and iSCSI VPP support
Also tweak some wording and add other minor feature additions. Change-Id: I37f4c97c260e55c62b112b72fb47a316772da3f7 Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-on: https://review.gerrithub.io/409223 Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
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CHANGELOG.md
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CHANGELOG.md
@ -1,6 +1,6 @@
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# Changelog
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## v18.04: (Upcoming Release)
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## v18.04: Logical Volume Snapshot/Clone, iSCSI Initiator, Bdev QoS, VPP Userspace TCP/IP
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### vhost
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@ -9,9 +9,21 @@ DPDK rte_vhost vulnerability [CVE-2018-1059](http://cve.mitre.org/cgi-bin/cvenam
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Please see this [security advisory](https://access.redhat.com/security/cve/cve-2018-1059)
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for additional information on the DPDK vulnerability.
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Workarounds have been added to ensure vhost compatibility with QEMU 2.12.
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EXPERIMENTAL: Support for vhost-nvme has been added to the SPDK vhost target. See the
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[vhost documentation](http://www.spdk.io/doc/vhost.html) for more details.
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### Unified Target Application
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A new unified SPDK target application, `spdk_tgt`, has been added. This application combines the
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functionality of several existing SPDK applications, including the iSCSI target, NVMe-oF target,
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and vhost target. The new application can be managed through the existing configuration file and
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[JSON-RPC](http://www.spdk.io/doc/jsonrpc.html) methods.
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### Env
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Add wrapper for DPDK rte_mempool_get_bulk() via spdk_mempool_get_bulk().
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spdk_mempool_get_bulk() has been added to wrap DPDK rte_mempool_get_bulk().
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New memory management functions spdk_malloc(), spdk_zmalloc(), and spdk_free() have been added.
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These new functions have a `flags` parameter that allows the user to specify whether the allocated
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@ -21,13 +33,20 @@ eventually be deprecated and removed.
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### Bdev
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Add new optional bdev module interface function, init_complete, to notify bdev modules
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when the bdev subsystem initialization is complete. Useful for virtual bdevs that require
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A new optional bdev module interface function, `init_complete`, has been added to notify bdev modules
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when the bdev subsystem initialization is complete. This may be useful for virtual bdevs that require
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notification that the set of initialization examine() calls is complete.
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The bdev layer now allows modules to provide an optional per-bdev UUID, which can be retrieved with
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the spdk_bdev_get_uuid() function.
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Enforcement of IOPS limits for quality of service (QoS) has been added to the bdev layer. See the
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[set_bdev_qos_limit_iops](http://www.spdk.io/doc/jsonrpc.html#rpc_set_bdev_qos_limit_iops) documentation
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for more details.
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### RPC
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The Rpc configuration file section, which was deprecated in v18.01, has been removed.
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The `[Rpc]` configuration file section, which was deprecated in v18.01, has been removed.
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Users should switch to the `-r` command-line parameter instead.
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The JSON-RPC server implementation now allows up to 32 megabyte responses, growing as
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@ -40,21 +59,22 @@ See the [SPDKCLI](http://www.spdk.io/doc/spdkcli.html) documentation for more de
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### NVMe Driver
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EXPERIMENTAL: Adds support for WDS and RDS capable CMBs in NVMe controllers. This support is
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EXPERIMENTAL: Support for WDS and RDS capable CMBs in NVMe controllers has been added. This support is
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experimental pending a functional allocator to free and reallocate CMB buffers.
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spdk_nvme_ns_get_uuid() has been added to allow retrieval of per-namespace UUIDs when available.
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Added spdk_nvme_ctrlr_get_first_active_ns() and spdk_nvme_ctrlr_get_next_active_ns() to iterate
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active namespaces and spdk_nvme_ctrlr_is_active_ns() to check if a ns id is active.
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New API functions spdk_nvme_ctrlr_get_first_active_ns() and spdk_nvme_ctrlr_get_next_active_ns()
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have been added to iterate active namespaces, as well as spdk_nvme_ctrlr_is_active_ns() to check if
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a namespace ID is active.
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### NVMe-oF Target
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Namespaces may now be assigned unique identifiers via new optional "eui64" and "nguid" parameters
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to the `nvmf_subsystem_add_ns` RPC method.
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Namespaces may now be assigned unique identifiers via new optional `eui64` and `nguid` parameters
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to the `nvmf_subsystem_add_ns` RPC method. Additionally, the NVMe-oF target automatically exposes
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the backing bdev's UUID as the namespace UUID when available.
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`spdk_nvmf_subsystem_remove_ns` is now asynchronous and requires two additional arguments, cb_fn and cb_arg.
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cb_fn is a function pointer of type spdk_channel_for_each_cpl and cb_arg is a void pointer.
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spdk_nvmf_subsystem_remove_ns() is now asynchronous and requires a callback to indicate completion.
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### Blobstore
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@ -84,9 +104,11 @@ and Clones of existing Snapshots.
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See the [lvol snapshots](http://www.spdk.io/doc/logical_volumes.html#lvol_snapshots) documentation
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for more details.
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Resizing logical volumes is now supported via the `resize_lvol_bdev` RPC method.
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### Lib
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A set of changes were made in the SPDK's lib code altering,
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A set of changes were made in the SPDK's lib code altering
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instances of calls to `exit()` and `abort()` to return a failure instead
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wherever reasonably possible.
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@ -106,6 +128,12 @@ The prototype for spdk_poller_fn() has been modified; it now returns a value ind
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whether or not the poller did any work. Existing pollers will need to be updated to
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return a value.
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### iSCSI Target
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The SPDK iSCSI target now supports the fd.io Vector Packet Processing (VPP) framework userspace
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TCP/IP stack. See the [iSCSI VPP documentation](http://www.spdk.io/doc/iscsi.html#vpp) for more
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details.
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### iSCSI initiator
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An iSCSI initiator bdev module has been added to SPDK. This module should be considered
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@ -114,8 +142,8 @@ lib/bdev/iscsi/README.
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### PMDK
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The persistent memory (PMDK) bdev module is now enabled using --with-pmdk instead of
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--with-nvml. This reflects the renaming of the persistent memory library from NVML to
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The persistent memory (PMDK) bdev module is now enabled using `--with-pmdk` instead of
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`--with-nvml`. This reflects the renaming of the persistent memory library from NVML to
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PMDK.
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### Virtio Block driver
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@ -128,7 +156,7 @@ more information.
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### Virtio with 2MB hugepages
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Previous 1GB hugepage limitation has now been lifted. A new '-g' command-line option
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The previous 1GB hugepage limitation has now been lifted. A new `-g` command-line option
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enables SPDK Virtio to work with 2MB hugepages.
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See [2MB hugepages](http://www.spdk.io/doc/virtio.html#virtio_2mb) for details.
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